In re Sherwood

613 F.2d 809, 204 U.S.P.Q. (BNA) 537, 1980 CCPA LEXIS 298
CourtCourt of Customs and Patent Appeals
DecidedJanuary 10, 1980
DocketAppeal No. 79-579
StatusPublished
Cited by57 cases

This text of 613 F.2d 809 (In re Sherwood) is published on Counsel Stack Legal Research, covering Court of Customs and Patent Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In re Sherwood, 613 F.2d 809, 204 U.S.P.Q. (BNA) 537, 1980 CCPA LEXIS 298 (ccpa 1980).

Opinion

BALDWIN, Judge.

This is an appeal from the decision of the United States Patent and Trademark Office (PTO) Board of Appeals (board) affirming the rejections of all the claims as unpatentable under 35 U.S.C. § 101 for being directed to nonstatutory subject matter and under 35 U.S.C. § 112, paragraph one, for being based on a specification which fails to disclose the best mode. This application, serial No. 567,45s,1 was filed April 14, 1975, and is entitled “Continuous Automatic Migration of Seismic Reflection Data with Waveform Preservation.” We reverse.

[811]*811 The Invention

A very common method of geophysical prospecting involves the production of a sonic (or seismic) wave in the earth. Certain subsurface geological formations, which may contain petroleum deposits, will reflect this induced seismic wave upward where it will be detected by variously spaced surface geophones. Each resulting geophone signal, as recorded, is merely an amplitude-time representation of that reflected sonic wave and is known as a “seismic trace.” This invention involves apparatus (or “means for”) and a method for producing a cross-sectional map (or “seismic depth section”) depicting the position and shape of those subsurface formations.

Claim 15 is typical of the “means”-type claims which recite apparatus for plotting the desired map:

15, A system for converting a seismic time section consisting of a plurality of amplitude-versus-time seismic traces, into a seismic depth section consisting of a plurality of amplitude-versus-depth traces, so that events on the time section are migrated, both vertically and horizontally, into positions on said depth section corresponding to the actual spatial positions of the seismic reflectors in the subsurface, comprising:
(a) automated data processing means for sonogramming said amplitude-versus-time traces, a group of traces at a time, to produce a plurality of sonograms each identified, indexed and stored with a respective horizontal pivot coordinate of a respective group of sonogrammed amplitude-versus-time traces, and with a represented moveout,
(b) machine means for dividing each individual sonogram into a series of segments in accordance with a pre-selected seismic velocity function, and re-indexing and storing, also in accordance with said preselected velocity function, each of said series of segments into a particular storage zonelet representing a portion of said seismic depth section identified and indexed by a particular depth and horizontal coordinate, each of said series of divided and stored segments also being identified and indexed within a particular zone-let in accordance with a represented dip angle,
(c) machine means for automatically sonogramming said segments divided and stored within each of the zonelets to produce a final plurality of amplitude-versus-depth representations and
(d) machine means for directing and plotting the placement of said final representations on said seismic depth section, so that said seismic reflectors in said subsurface can be identified, in the vertical and horizontal location, by amplitude variations on said amplitude-versus-depth traces of said depth section.

Claim 21 is illustrative of the “means”type claims which do not recite a final plotting “means.”

21. An apparatus for converting a seismic time section consisting of a plurality of amplitude-versus-time seismic traces, into a plurality of machine generated, amplitude-versus-depth representations, so that events on the time section are migrated, both vertically and horizontally, according to the depth and horizontal coordinates of the seismic reflectors within a subsurface earth formation, [sic] they represent, comprising:
(a) automated data processing means for sonogramming said amplitude-versus-time traces, a group of traces at a time, to produce a plurality of sonograms each identified by and indexed through a respective horizontal pivot coordinate and a represented moveout,
(b) automated means for machine dividing each of said individual sonograms into a series of segments in accordance with a seismic velocity function characteristic of the subsurface under study, and for each of a series of zonelets representing portions of said subsurface under study, said automated dividing means including separate means for placing, storing and indexing also in accordance with said seismic velocity function, said series of segments into said zonelets to provide said plurality of machine generated, amplitude-versus-depth representations.

[812]*812The specification is largely directed to a discussion of analog computer apparatus suitable for producing the desired subsurface map by solving the disclosed' equations'. The specification also states:

The final seismic depth section reproduced in FIGURE 8 was actually prepared by performing the method of the present invention on a large scale digital computer. It should be understood that the analog apparatus here shown as mechanical devices electrically interconnected are intended to assist in the understanding of the invention. The best mode contemplated by the inventor of carrying out the invention is to perform the processing steps of the invention on a large scale digital computer with the processed data imprinted into visible form on any of the presently available plotting devices.

The Rejection

The examiner stated in the Answer that the rejection was two-fold.

First, the examiner noted:

Claims 15, 18-23, and 27 are rejected under 35 U.S.C. § 112, paragraph one, as based upon an inadequate disclosure in that the best mode contemplated by the Applicant has not been described in sufficient detail to enable a person of ordinary skill in the art to make and use it. Applicant has failed to disclose any computer hardware, any flow charts, any algorithms or any programs with which his best mode would operate. [Emphasis in original.]
******
To achieve Applicant’s invention a person skilled in the art would have to find digital hardware equipment able to carry out the invention, and devise flow charts and write programs which are not set out in the prior art.
To achieve Applicant’s objectives would thus require experimentation at length and an inordinate amount of speculation, industry and ingenuity, as the disclosure is merely an invitation to others to see if they can obtain Applicant’s objectives which Applicant does not disclose how to obtain.

Secondly:

Claims 15, 18-23, and 27 are rejected under 35 U.S.C. §§ 100 and 101 as directed to a non-statutory class of invention.

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Bluebook (online)
613 F.2d 809, 204 U.S.P.Q. (BNA) 537, 1980 CCPA LEXIS 298, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-sherwood-ccpa-1980.